#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include <tinycthread.h>
#include <getopt.h>
#include <linmath.h>
#include <glad/glad.h>
#include <GLFW/glfw3.h>

Include dependency graph for particles.c:

Classes
struct	PARTICLE

struct	Vec3

struct	Vertex

Macros
#define	BATCH_PARTICLES 70

#define	BIRTH_INTERVAL (LIFE_SPAN/(float)MAX_PARTICLES)

#define	F_TEX_HEIGHT 16

#define	F_TEX_WIDTH 16

#define	FOUNTAIN_HEIGHT 3.f

#define	FOUNTAIN_R2 (FOUNTAIN_RADIUS+PARTICLE_SIZE/2)*(FOUNTAIN_RADIUS+PARTICLE_SIZE/2)

#define	FOUNTAIN_RADIUS 1.6f

#define	FOUNTAIN_SIDE_POINTS 14

#define	FOUNTAIN_SWEEP_STEPS 32

#define	FRICTION 0.75f

#define	GL_LIGHT_MODEL_COLOR_CONTROL_EXT 0x81F8

#define	GL_SEPARATE_SPECULAR_COLOR_EXT 0x81FA

#define	GL_SINGLE_COLOR_EXT 0x81F9

#define	GRAVITY 9.8f

#define	LIFE_SPAN 8.f

#define	MAX_PARTICLES 3000

#define	MIN_DELTA_T (BIRTH_INTERVAL * 0.5f)

#define	P_TEX_HEIGHT 8

#define	P_TEX_WIDTH 8

#define	PARTICLE_SIZE 0.7f

#define	PARTICLE_VERTS 4

#define	VELOCITY 8.f

Functions
static void	draw_floor (void)

static void	draw_fountain (void)

static void	draw_particles (GLFWwindow *window, double t, float dt)

static void	draw_scene (GLFWwindow *window, double t)

static void	init_particle (PARTICLE *p, double t)

static void	key_callback (GLFWwindow *window, int key, int scancode, int action, int mods)

int	main (int argc, char **argv)

static void	particle_engine (double t, float dt)

static int	physics_thread_main (void *arg)

static void	resize_callback (GLFWwindow *window, int width, int height)

static void	setup_lights (void)

static void	tessellate_floor (float x1, float y1, float x2, float y2, int depth)

static void	update_particle (PARTICLE *p, float dt)

static void	usage (void)

Variables
float	aspect_ratio

const GLfloat	floor_diffuse [4] = { 1.f, 0.6f, 0.6f, 1.f }

const GLfloat	floor_shininess = 18.f

const GLfloat	floor_specular [4] = { 0.6f, 0.6f, 0.6f, 1.f }

GLuint	floor_tex_id

const unsigned char	floor_texture [F_TEX_WIDTH *F_TEX_HEIGHT]

const GLfloat	fog_color [4] = { 0.1f, 0.1f, 0.1f, 1.f }

const GLfloat	fountain_diffuse [4] = { 0.7f, 1.f, 1.f, 1.f }

static const float	fountain_normal [FOUNTAIN_SIDE_POINTS *2]

const GLfloat	fountain_shininess = 12.f

static const float	fountain_side [FOUNTAIN_SIDE_POINTS *2]

const GLfloat	fountain_specular [4] = { 1.f, 1.f, 1.f, 1.f }

static float	glow_color [4]

static float	glow_pos [4]

static float	min_age

GLuint	particle_tex_id

const unsigned char	particle_texture [P_TEX_WIDTH *P_TEX_HEIGHT]

static PARTICLE	particles [MAX_PARTICLES]

struct {
cnd_t d_done

int d_frame

float dt

cnd_t p_done

int p_frame

mtx_t particles_lock

double t

}	thread_sync

int	wireframe

Macro Definition Documentation

#define BATCH_PARTICLES 70

Definition at line 388 of file particles.c.

#define BIRTH_INTERVAL (LIFE_SPAN/(float)MAX_PARTICLES)

Definition at line 157 of file particles.c.

#define F_TEX_HEIGHT 16

Definition at line 107 of file particles.c.

#define F_TEX_WIDTH 16

Definition at line 106 of file particles.c.

#define FOUNTAIN_HEIGHT 3.f

Definition at line 172 of file particles.c.

#define FOUNTAIN_R2 (FOUNTAIN_RADIUS+PARTICLE_SIZE/2)*(FOUNTAIN_RADIUS+PARTICLE_SIZE/2)

Definition at line 291 of file particles.c.

#define FOUNTAIN_RADIUS 1.6f

Definition at line 175 of file particles.c.

#define FOUNTAIN_SIDE_POINTS 14

Definition at line 579 of file particles.c.

#define FOUNTAIN_SWEEP_STEPS 32

Definition at line 580 of file particles.c.

#define FRICTION 0.75f

Definition at line 169 of file particles.c.

#define GL_LIGHT_MODEL_COLOR_CONTROL_EXT 0x81F8

Definition at line 47 of file particles.c.

#define GL_SEPARATE_SPECULAR_COLOR_EXT 0x81FA

Definition at line 49 of file particles.c.

#define GL_SINGLE_COLOR_EXT 0x81F9

Definition at line 48 of file particles.c.

#define GRAVITY 9.8f

Definition at line 163 of file particles.c.

#define LIFE_SPAN 8.f

Definition at line 154 of file particles.c.

#define MAX_PARTICLES 3000

Definition at line 151 of file particles.c.

#define MIN_DELTA_T (BIRTH_INTERVAL * 0.5f)

Definition at line 178 of file particles.c.

#define P_TEX_HEIGHT 8

Definition at line 105 of file particles.c.

#define P_TEX_WIDTH 8

Definition at line 104 of file particles.c.

#define PARTICLE_SIZE 0.7f

Definition at line 160 of file particles.c.

#define PARTICLE_VERTS 4

Definition at line 391 of file particles.c.

#define VELOCITY 8.f

Definition at line 166 of file particles.c.

Function Documentation

static void draw_floor ( void )

static

Definition at line 703 of file particles.c.

static void draw_fountain ( void )

static

Definition at line 603 of file particles.c.

static void draw_particles	(	GLFWwindow *	window,
		double	t,
		float	dt
	)

static

Definition at line 393 of file particles.c.

static void draw_scene	(	GLFWwindow *	window,
		double	t
	)

static

Definition at line 786 of file particles.c.

static void init_particle	(	PARTICLE *	p,
		double	t
	)

static

Definition at line 243 of file particles.c.

static void key_callback	(	GLFWwindow *	window,
		int	key,
		int	scancode,
		int	action,
		int	mods
	)

static

Definition at line 874 of file particles.c.

int main	(	int	argc,
		char **	argv
	)

Definition at line 941 of file particles.c.

static void particle_engine	(	double	t,
		float	dt
	)

static

Definition at line 345 of file particles.c.

static int physics_thread_main ( void * arg )

static

Definition at line 899 of file particles.c.

static void resize_callback	(	GLFWwindow *	window,
		int	width,
		int	height
	)

static

Definition at line 863 of file particles.c.

static void setup_lights ( void )

static

Definition at line 747 of file particles.c.

static void tessellate_floor	(	float	x1,
		float	y1,
		float	x2,
		float	y2,
		int	depth
	)

static

Definition at line 659 of file particles.c.

static void update_particle	(	PARTICLE *	p,
		float	dt
	)

static

Definition at line 293 of file particles.c.

static void usage ( void )

static

Definition at line 225 of file particles.c.

Variable Documentation

float aspect_ratio

Definition at line 82 of file particles.c.

cnd_t d_done

Definition at line 94 of file particles.c.

int d_frame

Definition at line 92 of file particles.c.

float dt

Definition at line 90 of file particles.c.

const GLfloat floor_diffuse[4] = { 1.f, 0.6f, 0.6f, 1.f }

Definition at line 215 of file particles.c.

const GLfloat floor_shininess = 18.f

Definition at line 217 of file particles.c.

const GLfloat floor_specular[4] = { 0.6f, 0.6f, 0.6f, 1.f }

Definition at line 216 of file particles.c.

GLuint floor_tex_id

Definition at line 110 of file particles.c.

const unsigned char floor_texture[F_TEX_WIDTH *F_TEX_HEIGHT]

Initial value:

= {
    0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
    0xff, 0xf0, 0xcc, 0xf0, 0xf0, 0xf0, 0xff, 0xf0, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
    0xf0, 0xcc, 0xee, 0xff, 0xf0, 0xf0, 0xf0, 0xf0, 0x30, 0x66, 0x30, 0x30, 0x30, 0x20, 0x30, 0x30,
    0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xee, 0xf0, 0xf0, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
    0xf0, 0xf0, 0xf0, 0xf0, 0xcc, 0xf0, 0xf0, 0xf0, 0x30, 0x30, 0x55, 0x30, 0x30, 0x44, 0x30, 0x30,
    0xf0, 0xdd, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0x33, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
    0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xff, 0xf0, 0xf0, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x60, 0x30,
    0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0x33, 0x33, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30,
    0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x33, 0x30, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
    0x30, 0x30, 0x30, 0x30, 0x30, 0x20, 0x30, 0x30, 0xf0, 0xff, 0xf0, 0xf0, 0xdd, 0xf0, 0xf0, 0xff,
    0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x55, 0x33, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xff, 0xf0, 0xf0,
    0x30, 0x44, 0x66, 0x30, 0x30, 0x30, 0x30, 0x30, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
    0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0xf0, 0xf0, 0xf0, 0xaa, 0xf0, 0xf0, 0xcc, 0xf0,
    0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0xff, 0xf0, 0xf0, 0xf0, 0xff, 0xf0, 0xdd, 0xf0,
    0x30, 0x30, 0x30, 0x77, 0x30, 0x30, 0x30, 0x30, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
    0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0, 0xf0,
}

Definition at line 125 of file particles.c.

const GLfloat fog_color[4] = { 0.1f, 0.1f, 0.1f, 1.f }

Definition at line 218 of file particles.c.

const GLfloat fountain_diffuse[4] = { 0.7f, 1.f, 1.f, 1.f }

Definition at line 212 of file particles.c.

const float fountain_normal[FOUNTAIN_SIDE_POINTS *2]

static

Initial value:

=
{
    1.0000f, 0.0000f,  0.6428f, 0.7660f,  0.3420f, 0.9397f,  1.0000f, 0.0000f,
    1.0000f, 0.0000f,  0.3420f,-0.9397f,  0.4226f,-0.9063f,  0.5000f,-0.8660f,
    0.7660f,-0.6428f,  0.9063f,-0.4226f,  0.0000f,1.00000f,  0.0000f,1.00000f,
    0.0000f,1.00000f,  0.0000f,1.00000f
}

Definition at line 590 of file particles.c.

const GLfloat fountain_shininess = 12.f

Definition at line 214 of file particles.c.

const float fountain_side[FOUNTAIN_SIDE_POINTS *2]

static

Initial value:

=
{
    1.2f, 0.f,  1.f, 0.2f,  0.41f, 0.3f, 0.4f, 0.35f,
    0.4f, 1.95f, 0.41f, 2.f, 0.8f, 2.2f,  1.2f, 2.4f,
    1.5f, 2.7f,  1.55f,2.95f, 1.6f, 3.f,  1.f, 3.f,
    0.5f, 3.f,  0.f, 3.f
}

Definition at line 582 of file particles.c.

const GLfloat fountain_specular[4] = { 1.f, 1.f, 1.f, 1.f }

Definition at line 213 of file particles.c.

float glow_color[4]

static

Definition at line 202 of file particles.c.

float glow_pos[4]

static

Definition at line 205 of file particles.c.

float min_age

static

Definition at line 199 of file particles.c.

cnd_t p_done

Definition at line 93 of file particles.c.

int p_frame

Definition at line 91 of file particles.c.

GLuint particle_tex_id

Definition at line 110 of file particles.c.

const unsigned char particle_texture[P_TEX_WIDTH *P_TEX_HEIGHT]

Initial value:

= {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x11, 0x22, 0x22, 0x11, 0x00, 0x00,
    0x00, 0x11, 0x33, 0x88, 0x77, 0x33, 0x11, 0x00,
    0x00, 0x22, 0x88, 0xff, 0xee, 0x77, 0x22, 0x00,
    0x00, 0x22, 0x77, 0xee, 0xff, 0x88, 0x22, 0x00,
    0x00, 0x11, 0x33, 0x77, 0x88, 0x33, 0x11, 0x00,
    0x00, 0x00, 0x11, 0x33, 0x22, 0x11, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
}

Definition at line 113 of file particles.c.

PARTICLE particles[MAX_PARTICLES]

static

Definition at line 196 of file particles.c.

mtx_t particles_lock

Definition at line 95 of file particles.c.

double t

Definition at line 89 of file particles.c.

struct { ... } thread_sync

int wireframe

Definition at line 85 of file particles.c.

Classes

Macros

Functions

Variables

Macro Definition Documentation

Function Documentation

Variable Documentation